Packages

c

org.apache.spark.util.random

PoissonSampler

class PoissonSampler[T] extends RandomSampler[T, T]

:: DeveloperApi :: A sampler for sampling with replacement, based on values drawn from Poisson distribution.

T

item type

Annotations
@DeveloperApi()
Linear Supertypes
RandomSampler[T, T], Serializable, Serializable, Cloneable, Cloneable, Pseudorandom, AnyRef, Any
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Inherited
  1. PoissonSampler
  2. RandomSampler
  3. Serializable
  4. Serializable
  5. Cloneable
  6. Cloneable
  7. Pseudorandom
  8. AnyRef
  9. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new PoissonSampler(fraction: Double)
  2. new PoissonSampler(fraction: Double, useGapSamplingIfPossible: Boolean)

    fraction

    the sampling fraction (with replacement)

    useGapSamplingIfPossible

    if true, use gap sampling when sampling ratio is low.

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): PoissonSampler[T]

    return a copy of the RandomSampler object

    return a copy of the RandomSampler object

    Definition Classes
    PoissonSampler → RandomSampler → AnyRef
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  8. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  10. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  12. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  14. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  15. def sample(items: Iterator[T]): Iterator[T]

    take a random sample

    take a random sample

    Definition Classes
    PoissonSampler → RandomSampler
  16. def sample(): Int

    Whether to sample the next item or not.

    Whether to sample the next item or not. Return how many times the next item will be sampled. Return 0 if it is not sampled.

    Definition Classes
    PoissonSampler → RandomSampler
  17. def setSeed(seed: Long): Unit

    Set random seed.

    Set random seed.

    Definition Classes
    PoissonSampler → Pseudorandom
  18. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  19. def toString(): String
    Definition Classes
    AnyRef → Any
  20. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  21. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  22. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )

Inherited from RandomSampler[T, T]

Inherited from Serializable

Inherited from Serializable

Inherited from Cloneable

Inherited from Cloneable

Inherited from Pseudorandom

Inherited from AnyRef

Inherited from Any

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